Wood-preserving compound.



UNITED STATES PATENT OFFICE.

HERBERT ELM'ER PER-OIVAL, OF HOUSTON, TEXAS, ASSIGNOR TO PEROIVAL -WOOD-PRE- SERVING COMPAN Y, INCORPORATED, OF HOUSTON, TEXAS.

WOOD-PRESERVING COMPOUND.

Specification of Letters Patent.

Patented June 23, 1908.

Application filed October 19, 1907. Serial No. 398,215.

To all 207mm it may conmn:

Be it known that I, HERBERT ELMER PER- civ.-\L. a citizen of the lnited States, residing at llouston. in the county of Harris and State of Texas, have invented a new and useful Wood-Preserving Compound, of which the following is a. specification.

This invention relates to wood preserving compounds.

The object of the invention is to provide a novel compound of this character, which shall be thoroughly effective in preserving 'wood from decay and from the attacks of tercdos: that shall be cheap and easily manu-- tactured; and ready of application for use: and in which no particular skill or care will be necessary-in its proper employment.

\Yith the above and other objects in view, as will appear as the nature of the invention is.bet-te.r understood, the same consists in the novel wood preserving compound hereinafter described and claimed.

The compound consists of a mixture of crude petroleum. dead oil, naphthalene, sodium chlorid, oxid of iron, and rosin.

l or the purpose merely of stating a formula, it has been assumed that crude petroleum and dead oil eachwei-gh 16 ounces to the pint. Taking one ounce avoirdupo is as the unit of weight in computing the proportions of ditl'erent parts, the formula is as follows crude petroleum, 64 ounces, dead o l, 43 ounces, naphthalene, 24 ounces, sodium chlorid, 8 ounces, oxid of iron, 8 ounces, rosin, 8 ounces. These ingredients are thoroughly mixed, andare applied to the wood, when the same is thoroughly air-scasoned either by painting with a. brush, or by immersing the wood in the compound, which will be contained in an open tank for the purpose, the duration of treatment depending upon the penetration desired.

By the employment of crude petroleum as a base, and which has the power of penetra ting the pores of seasoned lumber and hermetically seal them, thus to prevent the introduction of ai'rand moisture, and the elements of decay incident thereto, the germicidal constituents of the compound are conveyed by the petroleum, as a vehicle, into the very heart of the Wood being treated.

A further advantage accruing from the use of crude petroleum is that it is cheap, easily obtainable, and readily applied in use.

Having described the invention what is claimed is 1. A compound for preserving wood consisting of crude petroleum, dead oil, naphthalene, sodium chlorid, oxid of iron, and rosin, substantially in the proportions speci- HERBERT ELMER PERCIVAL.

Witnesses:

J. M. LEE, J. O. MILLER. 

